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core: MAC address spoofing/cloning (rh #447827) (bgo #553771)

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This commit implements MAC cloning feature in NetworkManager. To support that,
'PermHwAddress' property is added into *.Device.Wired and *.Device.Wireless
interfaces. The permanent MAC address is obtained when creating the device, and
is used for 'locking' connections to the device. If a cloned MAC is specified
in connection to be activated, the MAC is set to the interface in stage1. While
disconecting, the permanent MAC is set back to the interface.
This commit is contained in:
Jiří Klimeš
2010-06-22 14:21:25 +02:00
parent a8e0c2637b
commit 1b49f941a6
28 changed files with 705 additions and 128 deletions
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42
src/nm-system.c
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@@ -772,6 +772,48 @@ nm_system_device_set_mtu (const char *iface, guint32 mtu)
return success;
}
gboolean
nm_system_device_set_mac (const char *iface, const struct ether_addr *mac)
{
struct rtnl_link *old;
struct rtnl_link *new;
gboolean success = FALSE;
struct nl_handle *nlh;
int iface_idx;
struct nl_addr *addr = NULL;
g_return_val_if_fail (iface != NULL, FALSE);
g_return_val_if_fail (mac != NULL, FALSE);
new = rtnl_link_alloc ();
if (!new)
return FALSE;
iface_idx = nm_netlink_iface_to_index (iface);
old = nm_netlink_index_to_rtnl_link (iface_idx);
if (old) {
addr = nl_addr_build (AF_LLC, (void *) mac, ETH_ALEN);
if (!addr) {
char *mac_str;
mac_str = g_strdup_printf ("%02X:%02X:%02X:%02X:%02X:%02X", mac->ether_addr_octet[0], mac->ether_addr_octet[1], mac->ether_addr_octet[2],
mac->ether_addr_octet[3], mac->ether_addr_octet[4], mac->ether_addr_octet[5]);
nm_log_err (LOGD_DEVICE, "(%s): could not allocate memory for MAC address (%s)", iface, mac_str);
g_free (mac_str);
return FALSE;
}
rtnl_link_set_addr (new, addr);
nlh = nm_netlink_get_default_handle ();
if (nlh) {
rtnl_link_change (nlh, old, new, 0);
success = TRUE;
}
rtnl_link_put (old);
}
rtnl_link_put (new);
return success;
}
static struct rtnl_route *
add_ip4_route_to_gateway (const char *iface, guint32 gw, guint32 mss)
{